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