The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  2  2  4  0  1  1  1  1  0  2  1  0  1  1  2  1  0  4  2  2  4  1  1  0  1  4  2  1  1  2  1  1  0  0  1  2  2  1  1  1  1  1
 0  2  0  2  0  0  2  6  0  0  2  6  4  4  6  2  4  6  0  6  0  2  6  2  2  4  0  6  4  0  4  6  4  4  4  6  2  4  2  0  2  2  6  4  2  4  2  2  6  0  4  0  0  4  2  2  0  6  4  2  0  0  0
 0  0  2  2  0  6  2  0  0  6  2  0  4  2  0  2  2  0  4  6  6  2  0  6  0  4  6  4  0  2  2  6  2  2  6  4  0  2  6  6  2  2  6  0  0  6  6  2  0  2  2  0  4  2  0  2  2  4  2  6  4  0  0
 0  0  0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  4  4  4  4  4  4  4  4  4  4  4  4  4  0  4  4  4  4  0  0  4  4  4  4  4  0  0  0  4  0  0  0  0  0
 0  0  0  0  4  0  0  0  0  0  0  0  4  0  0  0  0  4  4  0  4  4  0  0  4  4  4  0  4  4  4  0  0  0  4  4  4  0  0  4  0  0  0  4  0  4  4  0  0  4  0  4  4  4  0  4  4  4  0  0  4  4  0
 0  0  0  0  0  4  0  0  0  0  0  0  0  0  4  4  0  0  4  4  4  4  4  0  0  4  4  4  4  0  4  4  4  4  4  0  0  4  0  4  4  0  4  0  4  0  4  0  0  4  4  0  4  4  0  4  0  4  4  0  4  4  0
 0  0  0  0  0  0  4  0  0  0  0  0  0  0  0  4  4  4  4  4  0  4  0  0  4  4  0  4  0  0  4  0  0  4  0  0  4  4  0  0  0  4  4  0  0  4  4  4  0  0  4  0  0  4  0  0  4  4  4  0  4  4  0
 0  0  0  0  0  0  0  4  0  0  0  4  0  4  4  4  0  4  4  0  4  4  0  4  4  4  0  4  0  0  0  0  4  0  4  0  0  0  4  0  0  4  4  0  4  4  0  0  0  4  0  0  4  4  4  0  0  0  4  4  4  4  0
 0  0  0  0  0  0  0  0  4  0  0  0  4  4  4  0  4  4  4  4  4  0  0  0  4  0  0  4  0  4  4  0  4  0  0  0  0  4  0  4  4  0  0  0  4  0  4  0  0  0  0  4  4  4  4  0  0  0  4  0  0  0  0
 0  0  0  0  0  0  0  0  0  4  0  4  4  0  4  4  4  4  0  4  4  4  4  0  0  0  4  0  0  4  0  4  4  4  4  0  0  0  4  4  0  0  0  4  0  4  4  0  0  0  4  0  0  4  4  0  4  4  0  4  0  0  0
 0  0  0  0  0  0  0  0  0  0  4  0  0  0  0  0  0  0  0  0  0  4  4  4  4  4  0  4  4  4  4  4  4  0  0  0  4  0  0  0  4  0  4  0  0  4  0  4  4  0  4  0  4  4  4  0  0  4  0  4  4  4  0

generates a code of length 63 over Z8 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+75x^48+12x^49+105x^50+86x^51+297x^52+226x^53+438x^54+506x^55+849x^56+1058x^57+1350x^58+1842x^59+2156x^60+2752x^61+2853x^62+3282x^63+2941x^64+2896x^65+2283x^66+1930x^67+1403x^68+1026x^69+812x^70+462x^71+345x^72+194x^73+250x^74+78x^75+94x^76+28x^77+69x^78+6x^79+29x^80+26x^82+2x^84+4x^86+2x^90

The gray image is a code over GF(2) with n=252, k=15 and d=96.
This code was found by Heurico 1.16 in 58 seconds.