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