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