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