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