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)(17,18,22,26)(19,28,30,24)(20,25,35,44)(21,36,39,27)(23,37,41,31)(29,43,33,42)(32,40,47,48)(34,46,38,45)(9,10)(11,15)(12,14)(13,16)(17,19,22,30)(18,23,26,41)(20,32,35,47)(21,37,39,31)(24,36,28,27)(25,43,44,42)(29,34,33,38)(40,45,48,46)(1,3,5,4)(2,6,7,8)(9,11,12,16)(10,13,14,15)(17,19)(18,24)(20,33)(21,31)(22,30)(23,27)(25,43)(26,28)(29,35)(32,34)(36,41)(37,39)(38,47)(40,45)(42,44)(46,48)(11,16)(13,15)(17,20,22,35)(18,25,26,44)(19,29,30,33)(21,38,39,34)(23,40,41,48)(24,42,28,43)(27,46,36,45)(31,32,37,47)(1,4,5,3)(2,6,7,8)(10,14)(13,15)(18,26)(19,30)(25,44)(27,36)(29,33)(31,37)(32,47)(45,46)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.