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