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