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