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