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