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