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