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