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