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