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