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