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