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