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