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