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