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