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