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