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