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