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