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