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