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