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