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