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