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