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