One vertex per element, one color per generator, with an edge from x to x·s.
(2,6,8,12)(7,14,9,15)(17,18)(19,27,30,23)(20,31)(21,26)(22,25)(24,33)(28,37,45,43)(29,44,47,38)(32,39,46,48)(34,42)(35,40)(36,41)(1,2)(3,9)(4,12)(5,8)(6,13)(7,11)(10,14)(15,16)(17,19)(18,23)(20,32,33,46)(21,29)(22,30)(24,39,31,48)(25,27)(26,38)(28,34,45,35)(36,47)(37,40,43,42)(41,44)(1,3,4,10,5,11,13,16)(2,7,6,14,8,9,12,15)(17,20)(18,24,25,31)(19,28)(21,35)(22,33)(23,37,27,43)(26,42,41,40)(29,46)(30,45)(32,47)(34,36)(38,48,44,39)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.