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