One vertex per element, one color per generator, with an edge from x to x·s.
(5,6)(7,10)(8,9)(11,12)(13,14,18,20)(15,23,26,36)(16,21,27,34)(17,29,31,22)(19,30,32,25)(24,37,38,44)(28,41,40,35)(33,42,43,39)(2,3)(13,15,18,26)(14,19,20,32)(16,24,27,38)(17,30,31,25)(21,33,34,43)(22,36,29,23)(28,42,40,39)(35,44,41,37)(1,2,4,3)(6,9)(10,12)(14,20)(19,32)(21,34)(22,29)(23,36)(33,43)(35,41)(37,44)(1,3,4,2)(13,16)(14,21)(15,24)(17,28)(18,27)(19,33)(20,34)(22,35)(23,37)(25,39)(26,38)(29,41)(30,42)(31,40)(32,43)(36,44)(5,7,8,11)(6,10,9,12)(16,27)(21,34)(24,38)(28,40)(33,43)(35,41)(37,44)(39,42)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.