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