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