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