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