The generator matrix

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

generates a code of length 48 over Z8 who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+316x^42+396x^43+844x^44+532x^45+944x^46+696x^47+1050x^48+572x^49+890x^50+492x^51+655x^52+252x^53+316x^54+112x^55+69x^56+20x^57+30x^58+5x^60

The gray image is a code over GF(2) with n=192, k=13 and d=84.
This code was found by Heurico 1.16 in 30.8 seconds.