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