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