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