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