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