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