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