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