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