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