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