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