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