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