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