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