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