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