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