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