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