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