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