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