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