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