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)(20,28)(25,38)(26,34)(27,39)(29,35)(30,37)(31,36)(33,40)(41,43)(42,44) involution — undirected(5,6)(7,10)(8,9)(11,12)(13,15,18,28,19,27,17,26)(14,20,22,24,23,34,32,39)(16,25,29,40,30,41,31,42)(21,33,36,38,37,44,35,43)(1,2,3,4)(6,9)(10,12)(13,16,19,30)(14,21,23,37)(15,25,27,41)(17,31,18,29)(20,33,34,44)(22,36,32,35)(24,38,39,43)(26,42,28,40)(5,7)(6,10)(8,11)(9,12)(13,17,19,18)(14,22,23,32)(15,26,27,28)(16,29,30,31)(20,24,34,39)(21,35,37,36)(25,40,41,42)(33,43,44,38)(7,11)(10,12)(15,27)(20,34)(24,39)(25,41)(26,28)(33,44)(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.