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