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