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