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