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