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