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)(19,25,28,23)(20,24,29,30)(21,26,31,32)(33,34,39,38)(35,44,46,40)(36,42,47,41)(37,48,45,43)(1,3,6,11)(2,7,10,16)(4,5,12,15)(8,14,13,9)(17,19)(18,23)(20,26)(21,24)(22,28)(25,27)(29,32)(30,31)(33,35)(34,40)(36,37)(38,44)(39,46)(41,48)(42,43)(45,47)(3,11)(4,12)(7,16)(8,13)(17,20,22,29)(18,24,27,30)(19,26,28,32)(21,25,31,23)(33,36,39,47)(34,41,38,42)(35,37,46,45)(40,48,44,43)(1,4)(2,8)(3,5)(6,12)(7,14)(9,16)(10,13)(11,15)(17,20)(18,24)(19,26)(21,23)(22,29)(25,31)(27,30)(28,32)(33,36)(34,42)(35,45)(37,46)(38,41)(39,47)(40,48)(43,44) involution — undirected(1,2)(3,7)(4,8)(5,14)(6,10)(9,15)(11,16)(12,13)(17,19)(18,25)(20,26)(21,30)(22,28)(23,27)(24,31)(29,32)(33,37,39,45)(34,43,38,48)(35,36,46,47)(40,42,44,41)(1,5)(2,9)(3,12)(4,11)(6,15)(7,8)(10,14)(13,16)(17,21,22,31)(18,26,27,32)(19,24,28,30)(20,25,29,23)(33,38,39,34)(35,44,46,40)(36,42,47,41)(37,43,45,48)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.