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