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