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