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