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