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