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