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