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