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