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