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