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