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