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