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