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