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