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