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