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