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