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