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