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