I see that you bought the quilt top. Did you realize that the hexagons are usually made individually by hand using the English paper piecing technique, and then they are sewn together by hand. Because of this, you may not be able to find a "pattern" more detailed than the drawing you already have, but there are many sites that give instructions for doing EPP. It is a very portable type of handwork, and this is one of the prettiest EPP designs I have seen. (And no, I haven't done any EPP, but it is on my list of things to try... someday.)