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