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