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