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