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