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