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