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