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