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)(17,18,20,22)(19,23,26,28)(21,24,27,29)(25,31,32,30)(1,3,5,4)(2,6,7,8)(9,10,13,14)(11,16,12,15)(18,22)(19,25)(21,27)(23,30)(26,32)(28,31)(1,4,5,3)(2,6,7,8)(9,11,13,12)(10,15,14,16)(19,26)(23,28)(25,32)(30,31)(9,11,13,12)(10,15,14,16)(17,19,21,25,20,26,27,32)(18,23,24,31,22,28,29,30)(2,7)(6,8)(9,12,13,11)(10,15,14,16)(18,22)(19,26)(24,29)(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.