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