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