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