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