The generator matrix

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

generates a code of length 64 over Z8 who´s minimum homogenous weight is 60.

Homogenous weight enumerator: w(x)=1x^0+351x^60+335x^64+320x^68+16x^72+1x^124

The gray image is a code over GF(2) with n=256, k=10 and d=120.
This code was found by Heurico 1.16 in 0.175 seconds.