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