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