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