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)(15,24)(16,29)(17,22)(18,23)(19,32)(20,27)(21,30)(25,40)(26,39)(28,35)(31,36)(33,37)(34,43)(38,41)(42,44)(1,2,4,3)(5,6)(7,10)(8,9)(11,12)(13,15,18,27)(14,20,23,24)(16,25,31,42)(17,26,19,28)(21,34,37,38)(22,35,32,39)(29,44,36,40)(30,41,33,43)(1,3,4,2)(13,16)(14,21)(15,25)(17,30)(18,31)(19,33)(20,34)(22,36)(23,37)(24,38)(26,41)(27,42)(28,43)(29,32)(35,40)(39,44)(6,9)(10,12)(13,17,18,19)(14,22,23,32)(15,26,27,28)(16,30,31,33)(20,35,24,39)(21,36,37,29)(25,41,42,43)(34,40,38,44)(5,7,8,11)(6,10,9,12)(14,23)(15,27)(21,37)(22,32)(25,42)(26,28)(29,36)(41,43)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.