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