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