Turning a matrix in to a multi color graph

I am tring to turn this matrix into a plot that has multiple colors. The color code is this

%whtie = 1;
%orange = 2;
%yellow = 3;
%red = 4;
%blue = 5;
%green = 6;
%error (black) = 9999;
%nothing (no color) = 0

This is the matrix I have, it is a 9x12

UnsolvedLayout =

  Columns 1 through 32

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

  Columns 33 through 36

     0     0     0     0
     0     0     0     0
     0     0     0     0
     

Please help me figure out how to do this, my initial thought was using meshgrid