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