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