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