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