The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+158x^28+96x^30+166x^32+32x^34+50x^36+8x^40+1x^48

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 2.11 seconds.