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