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