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