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