The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+76x^48+406x^49+787x^50+1236x^51+1519x^52+2292x^53+2403x^54+3052x^55+2966x^56+3390x^57+2878x^58+3270x^59+2424x^60+2218x^61+1451x^62+1062x^63+615x^64+372x^65+182x^66+78x^67+45x^68+26x^69+10x^70+6x^71+2x^72+1x^74

The gray image is a code over GF(2) with n=228, k=15 and d=96.
This code was found by Heurico 1.16 in 27.1 seconds.