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