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