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