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