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