One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,3,4)(5,6)(7,10)(8,9)(11,12)(6,9)(10,12)(13,14)(15,19)(16,28)(17,31)(18,23)(20,24)(21,25)(22,29)(26,38)(27,34)(30,44)(32,40)(33,39)(35,43)(36,41)(37,42) involution — undirected(2,4)(5,7,8,11)(6,10,9,12)(14,19)(15,24)(16,25)(17,29)(20,21)(22,38)(23,34)(26,43)(27,41)(28,32)(30,42)(31,33)(35,44)(36,37)(39,40)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.