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