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)(34,36)(39,41)(40,44)(47,48)(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)(33,34,38,36)(35,41,43,39)(37,40,46,44)(42,48,45,47)(2,3)(7,9)(8,10)(15,16)(17,20,23,31)(18,25,27,21)(19,28,22,29)(24,30,26,32)(33,34,38,36)(35,41,43,39)(37,40,46,44)(42,48,45,47)(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)(33,35,38,43)(34,39,36,41)(37,45,46,42)(40,48,44,47)(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)(33,36,38,34)(35,41,43,39)(37,40,46,44)(42,47,45,48)(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)(33,37,38,46)(34,40,36,44)(35,42,43,45)(39,47,41,48)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.