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