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