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)(11,14,16,15)(18,22)(19,25)(20,28)(30,32)(33,34)(35,37)(36,40)(38,39)(41,46)(42,45)(43,48)(44,47)(1,3,5,4)(2,6,8,7)(9,11,13,16)(10,14,12,15)(18,22)(20,28)(23,26)(27,31)(34,39)(35,41)(40,47)(42,48)(9,11)(10,14)(12,15)(13,16)(17,18,21,22)(19,26,25,23)(20,24,28,29)(27,32,31,30)(33,35,38,41)(34,37,39,46)(36,42,44,48)(40,45,47,43)(1,2)(3,6)(4,7)(5,8)(17,19,21,25)(18,23,22,26)(20,27,28,31)(24,30,29,32)(33,36)(34,40)(35,42)(37,45)(38,44)(39,47)(41,48)(43,46)(1,4,5,3)(2,7,8,6)(9,12,13,10)(11,15,16,14)(17,20)(18,24)(19,27)(21,28)(22,29)(23,30)(25,31)(26,32)(33,37)(34,35)(36,43)(38,46)(39,41)(40,48)(42,47)(44,45)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.