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