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)(15,20)(16,27)(17,22)(18,31)(19,23)(21,28)(24,39)(25,34)(26,36)(29,37)(30,35)(32,38)(33,41)(40,43)(42,44) involution — undirected(1,2)(3,4)(6,9)(7,11)(13,15,19,26)(14,20,23,36)(16,24,29,42)(17,30,18,25)(21,33,38,43)(22,35,31,34)(27,39,37,44)(28,41,32,40)(2,4)(13,16)(14,21)(15,24)(17,28)(18,32)(19,29)(20,33)(22,37)(23,38)(25,40)(26,42)(27,31)(30,41)(34,39)(35,44)(36,43) involution — undirected(6,9)(10,12)(13,17,19,18)(14,22,23,31)(15,25,26,30)(16,28,29,32)(20,34,36,35)(21,37,38,27)(24,40,42,41)(33,39,43,44)(2,4)(5,7,8,11)(6,10,9,12)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.