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