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