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