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