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