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