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