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