The generator matrix

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

generates a code of length 66 over Z8 who´s minimum homogenous weight is 57.

Homogenous weight enumerator: w(x)=1x^0+186x^57+598x^58+1060x^59+1183x^60+1942x^61+1864x^62+2526x^63+2708x^64+2972x^65+2723x^66+3110x^67+2559x^68+2638x^69+2067x^70+1766x^71+1069x^72+808x^73+467x^74+294x^75+92x^76+92x^77+25x^78+12x^79+2x^80+2x^81+2x^84

The gray image is a code over GF(2) with n=264, k=15 and d=114.
This code was found by Heurico 1.16 in 33.1 seconds.