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