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