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