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