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