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