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