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)(17,18,21,23)(19,25,27,32)(20,28,30,24)(22,29,31,26)(33,34,37,41)(35,38,43,47)(36,39,44,40)(42,45,48,46)(1,3)(2,7)(4,11)(5,12)(6,13)(8,15)(9,16)(10,14)(17,19)(18,22)(20,29)(21,27)(23,31)(24,32)(25,28)(26,30)(33,35,37,43)(34,38,41,47)(36,42,44,48)(39,45,40,46)(1,4,6,5)(2,8,9,14)(3,11,13,12)(7,15,16,10)(20,30)(24,28)(25,32)(26,29)(34,39)(36,44)(38,45)(40,41)(42,48)(46,47)(1,4,6,5)(2,8,9,14)(3,12,13,11)(7,10,16,15)(18,23)(22,31)(24,28)(25,32)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.