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