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