The generator matrix

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

generates a code of length 54 over Z8 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+88x^48+266x^49+343x^50+498x^51+419x^52+456x^53+354x^54+328x^55+309x^56+266x^57+225x^58+222x^59+117x^60+112x^61+40x^62+24x^63+18x^64+4x^65+6x^66

The gray image is a code over GF(2) with n=216, k=12 and d=96.
This code was found by Heurico 1.16 in 0.437 seconds.