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