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