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