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

generates a code of length 57 over Z8 who´s minimum homogenous weight is 54.

Homogenous weight enumerator: w(x)=1x^0+28x^54+48x^55+102x^56+160x^57+96x^58+48x^59+24x^60+4x^62+1x^112

The gray image is a code over GF(2) with n=228, k=9 and d=108.
This code was found by Heurico 1.16 in 0.0606 seconds.