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