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