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