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