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