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