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