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