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