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