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