One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,8)(4,6)(5,7)(9,10,13,14)(11,15,16,12)(25,26,29,27)(28,31,32,30)(1,3)(2,4)(5,6)(7,8)(9,10)(11,15)(12,16)(13,14)(17,18,21,20)(19,23,24,22)(3,6)(4,8)(10,14)(12,15)(17,19,21,24)(18,22,20,23)(25,27,29,26)(28,31,32,30)(1,2)(3,8)(4,6)(5,7)(9,11,13,16)(10,15,14,12)(17,18,21,20)(19,22,24,23)(25,28)(26,30)(27,31)(29,32)(1,4,5,8)(2,6,7,3)(9,12,13,15)(10,16,14,11)(17,20,21,18)(19,23,24,22)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.