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