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