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