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