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