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