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