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