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