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