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