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