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