One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,8)(3,7,4,6)(9,10)(11,13)(12,14)(15,16)(17,18,21,24)(19,23,30,39)(20,31,34,25)(22,26,36,40)(27,44,29,37)(28,41,32,38)(33,42,35,43)(45,47,46,48)(1,3,5,4)(2,6,8,7)(9,11,12,15)(10,13,14,16)(17,19)(18,23)(20,32)(21,30)(22,27)(24,39)(25,41)(26,44)(28,34)(29,36)(31,38)(33,46)(35,45)(37,40)(42,48)(43,47)(10,14)(13,16)(18,24)(19,27)(20,33)(22,36)(23,37)(25,42)(29,30)(31,43)(34,35)(38,41)(39,44)(45,46) involution — undirected(1,3,5,4)(2,7,8,6)(17,20,21,34)(18,25,24,31)(19,28,30,32)(22,33,36,35)(23,38,39,41)(26,43,40,42)(27,45,29,46)(37,47,44,48)(1,4,5,3)(2,6,8,7)(19,29)(20,33)(22,36)(23,37)(25,43)(26,40)(27,30)(28,32)(31,42)(34,35)(38,41)(39,44)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.