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