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)(15,20)(16,21)(17,22)(18,24)(19,23)(25,34)(26,36)(27,35)(28,37)(29,38)(30,39)(31,40)(32,42)(33,41)(43,44)(2,4)(13,15)(14,20)(16,28)(17,30)(18,32)(19,26)(21,37)(22,39)(23,36)(24,42)(25,29)(27,33)(31,43)(34,38)(35,41)(40,44) involution — undirected(6,9)(10,12)(13,16,19,17)(14,21,23,22)(15,25,26,43)(18,31,33,29)(20,34,36,44)(24,40,41,38)(27,30,32,28)(35,39,42,37)(13,17,19,16)(14,22,23,21)(15,25,26,43)(18,29,33,31)(20,34,36,44)(24,38,41,40)(27,30,32,28)(35,39,42,37)(5,7,8,11)(6,10,9,12)(14,23)(15,26)(21,22)(24,41)(25,43)(27,32)(28,30)(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.