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