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