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