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