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