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