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