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