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