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