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