One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(5,6,10,8)(7,12,9,11)(13,14)(15,16)(17,19)(18,20)(1,2,3,4)(5,6,10,8)(7,12,9,11)(13,15,18,17)(14,16,20,19)(5,7,10,9)(6,11,8,12)(13,15,18,17)(14,19,20,16)(5,6,10,8)(7,12,9,11)(13,16,18,19)(14,15,20,17)(5,8,10,6)(7,12,9,11)(13,15,18,17)(14,16,20,19)(5,9,10,7)(6,11,8,12)(13,17,18,15)(14,19,20,16)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.