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