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