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