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