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