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