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