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