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