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

generates a code of length 58 over Z8 who´s minimum homogenous weight is 57.

Homogenous weight enumerator: w(x)=1x^0+24x^57+76x^58+12x^60+8x^61+4x^62+3x^64

The gray image is a code over GF(2) with n=232, k=7 and d=114.
This code was found by Heurico 1.16 in 13.1 seconds.