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