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