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