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