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