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