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