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