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)(15,21)(16,28)(17,31)(18,23)(19,35)(20,26)(22,34)(24,29)(25,41)(27,37)(30,36)(32,38)(33,44)(39,43)(40,42) involution — undirected(1,2)(3,4)(6,10)(11,12)(13,15,18,26)(14,20,23,21)(16,29,27,19)(17,32,33,30)(22,39,40,41)(24,28,35,37)(25,42,43,34)(31,36,44,38)(5,7,9,8)(6,11,10,12)(13,16,29,26,18,27,19,15)(14,21,35,37,23,20,24,28)(17,32,42,25,33,30,34,43)(22,36,44,41,40,38,31,39)(2,4)(5,8,9,7)(6,12,10,11)(13,17,19,34,18,33,29,42)(14,22,24,31,23,40,35,44)(15,25,27,32,26,43,16,30)(20,36,37,39,21,38,28,41)(6,10)(11,12)(14,23)(17,33)(20,21)(24,35)(25,43)(28,37)(30,32)(34,42) involution — undirectedA 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.