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