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