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