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