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