The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+212x^57+555x^58+964x^59+1420x^60+1660x^61+2207x^62+2334x^63+2699x^64+2706x^65+3091x^66+2848x^67+2913x^68+2538x^69+2226x^70+1504x^71+1152x^72+748x^73+442x^74+284x^75+127x^76+46x^77+49x^78+18x^79+6x^80+10x^81+6x^82+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 1.11 in 15 seconds.