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