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