Hi welcome to the board.
This pattern would be super easy to draft yourself. It is nothing more than a modified rail fence type construction. It looks to me like the colored bricks are simply 6 alternating squares of light and dark values in the same color then stripped on either side with a narrow black sashing. They are then assembled in rows with one facing sashing up then one facing sashing on the side. The rows are then alternated.
You can just get yourself some graph paper and draw it out then assemble it with no pattern needed. Just decide how big you want to make it and count the rows then size your squares and sashing strips from there.