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