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