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