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