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