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