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)(15,19)(16,20)(17,18)(21,26)(22,25)(23,24)(27,28)(30,31)(33,41)(35,37)(39,44)(6,9)(10,12)(14,18)(19,25)(20,23)(26,27)(29,30,34,31)(32,37,40,35)(33,36,41,38)(39,43,44,42)(5,6)(7,10)(8,9)(11,12)(13,14)(15,19)(16,23)(17,18)(20,24)(21,27)(22,25)(26,28)(29,31,34,30)(32,37,40,35)(33,36,41,38)(39,42,44,43)(1,2)(3,4)(13,15,17,22)(14,19,18,25)(16,21,24,28)(20,26,23,27)(29,32)(30,35)(31,37)(33,39)(34,40)(36,42)(38,43)(41,44)(5,7)(6,10)(8,11)(9,12)(13,16,17,24)(14,20,18,23)(15,21,22,28)(19,26,25,27)(29,33,34,41)(30,36,31,38)(32,39,40,44)(35,42,37,43)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.