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