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