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