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