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