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