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