The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  1  4  2  0  2  2  0  4  1  0  1  1  4  1  0  2  1  2  2  0  1  1  0  2  1
 0  2  0  0  0  2  6  2  0  4  0  2  0  6  2  4  2  2  4  0  2  6  6  6  6  2  0  4  0  2  4  6  2  0  2  0  4  6  2  0  6  2  0  4  2  2  4  0  0  6  2  2  6  0  2  4  4
 0  0  2  0  2  2  6  0  0  0  2  4  2  2  4  6  2  2  0  6  0  6  0  2  6  4  2  4  0  6  4  0  2  2  6  2  2  6  4  2  2  4  6  4  6  0  4  0  4  4  2  0  4  4  0  4  6
 0  0  0  2  2  0  6  2  0  2  4  0  6  2  2  4  0  0  2  2  6  6  0  4  0  0  2  4  6  6  0  4  6  2  0  4  4  2  4  0  2  6  6  0  0  0  2  6  4  4  0  4  2  4  2  6  0
 0  0  0  0  4  0  0  0  4  4  4  0  0  0  0  0  0  4  4  0  0  4  4  0  4  0  4  4  0  4  0  0  4  0  4  4  0  4  4  0  4  0  0  4  0  4  4  0  0  0  0  4  0  4  0  4  0
 0  0  0  0  0  4  0  0  4  0  4  4  4  4  0  4  0  0  0  4  0  0  4  0  4  0  0  0  0  4  4  4  0  4  0  0  4  4  4  0  4  0  0  0  0  0  4  0  0  4  4  4  4  0  0  4  0
 0  0  0  0  0  0  4  0  0  4  4  4  0  0  0  0  4  0  0  4  4  4  4  0  0  4  4  0  4  0  4  0  0  4  0  4  0  4  4  0  0  4  0  0  4  4  0  4  0  0  4  4  4  4  0  4  0
 0  0  0  0  0  0  0  4  4  4  0  4  0  0  0  0  4  4  4  4  0  4  0  4  0  4  4  0  0  4  0  0  0  4  0  4  4  0  0  4  0  0  0  4  0  4  4  4  4  4  4  0  0  0  4  0  4

generates a code of length 57 over Z8 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+206x^48+4x^49+412x^50+104x^51+606x^52+232x^53+836x^54+392x^55+1075x^56+560x^57+1006x^58+440x^59+892x^60+216x^61+510x^62+88x^63+310x^64+12x^65+158x^66+92x^68+22x^70+15x^72+2x^76+1x^80

The gray image is a code over GF(2) with n=228, k=13 and d=96.
This code was found by Heurico 1.16 in 44.3 seconds.