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