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