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