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