The generator matrix

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

generates a code of length 72 over Z8 who´s minimum homogenous weight is 66.

Homogenous weight enumerator: w(x)=1x^0+268x^66+196x^67+451x^68+368x^69+442x^70+308x^71+463x^72+216x^73+364x^74+200x^75+229x^76+128x^77+142x^78+84x^79+116x^80+24x^81+54x^82+12x^83+18x^84+8x^86+2x^90+2x^92

The gray image is a code over GF(2) with n=288, k=12 and d=132.
This code was found by Heurico 1.16 in 2.5 seconds.