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