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