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