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