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