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