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