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