The generator matrix

 1  0  1  1  1  6  1  1  4  1  2  1  1  2  1  1  1  4  1  1  4  1  6  1  1  4  1  1  2  1  0  1  2  1  1  0  1  2  1  1  1  1  2  1  0  1  6  0  1  1  0  1  6  4  1  4  0
 0  1  1  0  3  1  2  3  1  5  1  6  3  1  0  6  5  1  4  7  1  2  1  1  0  1  6  7  1  1  1  4  1  3  4  1  3  1  5  6  0  6  1  6  1  1  1  2  7  7  1  0  1  2  6  2  1
 0  0  2  0  6  0  0  2  0  6  0  0  0  2  2  2  4  2  6  4  2  6  2  0  4  6  0  0  4  4  4  6  2  6  2  4  4  4  0  0  6  0  6  4  4  2  6  2  0  0  4  4  0  4  0  6  6
 0  0  0  2  0  0  2  2  2  2  6  4  0  4  2  2  6  6  4  6  0  4  6  4  4  4  0  2  4  6  4  6  6  2  4  6  0  4  4  0  2  4  2  2  2  6  0  4  0  2  0  6  6  2  0  4  6
 0  0  0  0  4  0  0  0  0  0  4  4  4  4  4  0  0  0  0  4  0  0  4  4  0  4  0  4  4  4  0  4  4  4  0  0  0  4  0  0  4  4  0  0  4  0  4  4  0  4  4  4  4  4  0  4  0
 0  0  0  0  0  4  0  0  4  4  4  0  4  0  4  4  0  4  4  4  0  0  4  4  4  4  0  0  0  4  4  0  4  0  0  0  4  4  4  0  0  4  4  4  0  0  4  0  0  0  4  0  4  4  0  4  0
 0  0  0  0  0  0  4  0  0  0  0  0  0  0  0  0  0  0  4  4  4  4  4  4  4  4  4  0  0  4  0  4  4  4  4  0  0  4  4  0  0  0  4  0  4  4  0  0  0  4  0  4  4  0  4  0  0
 0  0  0  0  0  0  0  4  4  4  4  0  0  0  0  0  4  4  0  0  0  0  0  4  4  0  4  0  4  4  4  4  4  4  4  0  4  4  0  4  0  4  4  0  0  4  0  0  0  0  0  4  0  0  0  0  4

generates a code of length 57 over Z8 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+229x^48+52x^49+584x^50+232x^51+1131x^52+488x^53+1820x^54+776x^55+2481x^56+960x^57+2326x^58+840x^59+1844x^60+504x^61+1086x^62+184x^63+480x^64+44x^65+170x^66+16x^67+93x^68+30x^70+9x^72+4x^76

The gray image is a code over GF(2) with n=228, k=14 and d=96.
This code was found by Heurico 1.16 in 93.6 seconds.