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