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