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