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