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