The generator matrix

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

generates a code of length 38 over Z8 who´s minimum homogenous weight is 32.

Homogenous weight enumerator: w(x)=1x^0+271x^32+284x^34+1059x^36+908x^38+1007x^40+340x^42+186x^44+4x^46+30x^48+3x^52+3x^56

The gray image is a code over GF(2) with n=152, k=12 and d=64.
This code was found by Heurico 1.16 in 62.3 seconds.