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