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