One vertex per element, one color per generator, with an edge from x to x·s.
(5,6,11,16)(7,14,18,20)(8,15,10,13)(9,19,17,12)(21,22,25,30,26,31,24,29)(23,27,32,28,34,36,33,35)(1,2)(3,4)(5,7,10,17,11,18,8,9)(6,12,15,14,16,19,13,20)(21,23,24,33,26,34,25,32)(22,27,29,35,31,36,30,28)(2,4)(5,8,11,10)(6,13,16,15)(7,9,18,17)(12,20,19,14)(21,23,26,34)(22,28,31,35)(24,32,25,33)(27,29,36,30)(5,9,8,18,11,17,10,7)(6,14,13,12,16,20,15,19)(21,24,26,25)(22,29,31,30)(23,32,34,33)(27,28,36,35)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.