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