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