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