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