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