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