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