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