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