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