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