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