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