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