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