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