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