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