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