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