The generator matrix

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

generates a code of length 57 over Z8 who´s minimum homogenous weight is 52.

Homogenous weight enumerator: w(x)=1x^0+273x^52+378x^54+458x^56+340x^58+319x^60+204x^62+48x^64+4x^66+7x^68+2x^70+12x^72+1x^76+1x^80

The gray image is a code over GF(2) with n=228, k=11 and d=104.
This code was found by Heurico 1.16 in 9.02 seconds.