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