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