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