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