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