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