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)(17,18,23,26)(19,27,21,24)(20,22,25,32)(28,31,30,29)(33,34)(35,43)(36,37)(38,41)(39,40)(42,47)(44,45)(46,48)(1,2)(3,6)(4,7)(5,8)(9,12)(10,14)(11,15)(13,16)(17,19,23,21)(18,24,26,27)(20,28,25,30)(22,29,32,31)(34,40)(36,42)(41,43)(44,46)(2,3)(7,9)(8,10)(15,16)(17,20,23,25)(18,22,26,32)(19,28,21,30)(24,29,27,31)(33,35,39,38)(34,41,40,43)(36,46,42,44)(37,45,47,48)(1,3,6,2)(4,9,12,7)(5,8,14,10)(11,15,13,16)(17,20)(18,22)(19,28)(21,30)(23,25)(24,29)(26,32)(27,31)(33,36,39,42)(34,37,40,47)(35,44,38,46)(41,48,43,45)(1,4,6,12)(2,7,3,9)(5,13,14,11)(8,16,10,15)(17,21,23,19)(18,24,26,27)(20,30,25,28)(22,29,32,31)(33,37)(34,42)(35,45)(36,40)(38,48)(39,47)(41,44)(43,46)(1,5,6,14)(2,8,3,10)(4,11,12,13)(7,15,9,16)(17,22)(18,25)(19,29)(20,26)(21,31)(23,32)(24,30)(27,28)(33,38,39,35)(34,41,40,43)(36,44,42,46)(37,45,47,48)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.