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