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