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