You can find the correct diagram for this quilt here:
http://www.apqmagazine.com.au/pdfs/c...correction.pdf
You can print it out and color it however you desire. You can also make the quilt squares whatever size you want. Just decide what size quilt you want to make, count the squares across and down, and then finish your squares accordingly. Good luck.
If you notice, this quilt is actually a series of 9 patch blocks, each numbered in the center.