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