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