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