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