The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+62x^48+332x^49+299x^50+478x^51+432x^52+448x^53+348x^54+368x^55+288x^56+354x^57+195x^58+150x^59+125x^60+118x^61+22x^62+44x^63+19x^64+10x^65+1x^68+2x^69

The gray image is a code over GF(2) with n=216, k=12 and d=96.
This code was found by Heurico 1.11 in 0.303 seconds.