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