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)(17,18,22,27,23,20,30,26)(19,28,21,24,29,25,32,31)(2,6,9,8)(7,14,15,10)(17,19,22,21,23,29,30,32)(18,24,26,28,20,31,27,25)(1,2)(3,7)(4,8)(5,9)(6,13)(10,11)(12,15)(14,16)(17,20)(18,23)(19,24)(21,28)(22,27)(25,32)(26,30)(29,31) involution — undirected(1,3,4,11,5,12,13,16)(2,7,8,10,9,15,6,14)(17,21,30,19,23,32,22,29)(18,25,27,31,20,28,26,24)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.