The generator matrix

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

generates a code of length 31 over Z8 who´s minimum homogenous weight is 28.

Homogenous weight enumerator: w(x)=1x^0+132x^28+128x^30+165x^32+32x^34+51x^36+2x^40+1x^52

The gray image is a code over GF(2) with n=124, k=9 and d=56.
This code was found by Heurico 1.16 in 0.0776 seconds.