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