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