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