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