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