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