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