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)(11,12)(13,15)(14,16)(17,18,21,24)(19,20,23,22)(25,26,28,30)(27,31,32,29)(2,6)(4,8)(9,11)(10,14)(12,15)(13,16)(17,19,21,23)(18,22,24,20)(2,6)(3,7)(9,11,13,16)(10,14,15,12)(17,20,21,22)(18,23,24,19)(25,26)(27,29)(28,30)(31,32)(1,3,5,7)(2,4,6,8)(9,11)(10,12)(13,16)(14,15)(17,20)(18,19)(21,22)(23,24)(25,27,28,32)(26,29,30,31)(1,4)(2,7)(3,6)(5,8)(9,12)(10,11)(13,14)(15,16)(17,19)(18,20)(21,23)(22,24) 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.