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