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