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