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