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