The generator matrix

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

generates a code of length 63 over Z8 who´s minimum homogenous weight is 57.

Homogenous weight enumerator: w(x)=1x^0+106x^57+355x^58+334x^59+487x^60+386x^61+408x^62+284x^63+399x^64+330x^65+265x^66+168x^67+227x^68+86x^69+78x^70+60x^71+50x^72+20x^73+30x^74+18x^75+4x^76

The gray image is a code over GF(2) with n=252, k=12 and d=114.
This code was found by Heurico 1.16 in 0.567 seconds.