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