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