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