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