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