The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+131x^48+192x^49+490x^50+288x^51+502x^52+328x^53+499x^54+320x^55+387x^56+192x^57+275x^58+144x^59+183x^60+56x^61+67x^62+16x^63+9x^64+11x^66+3x^68+2x^70

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 0.53 seconds.