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