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