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