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