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