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