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