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)(17,18,22,25)(19,27,29,32)(20,26,21,24)(23,30,31,28)(1,3)(2,7)(4,12)(5,14)(6,13)(8,11)(9,16)(10,15)(17,19)(18,23)(20,28)(21,30)(22,29)(24,27)(25,31)(26,32) involution — undirected(17,20)(18,24,25,26)(19,28)(21,22)(23,27,31,32)(29,30)(1,4,6,5)(2,8,10,9)(3,12,13,14)(7,11,15,16)(18,25)(23,31)(24,26)(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.