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