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