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