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