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)(35,42,36,39)(37,45,46,40)(43,47,44,48)(10,13)(14,16)(18,23)(19,25)(21,29)(28,32)(33,35,38,36)(34,39,41,42)(37,43,46,44)(40,47,45,48)(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)(36,42)(37,45)(38,41)(40,46)(43,48)(44,47)(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)(34,39,41,42)(37,44,46,43)(40,47,45,48)(1,3,4,7)(2,6,5,8)(9,11,12,15)(10,14,13,16)(17,21)(18,26)(19,27)(20,28)(22,29)(23,31)(24,32)(25,30)(33,37,38,46)(34,40,41,45)(35,43,36,44)(39,47,42,48)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.