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