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