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