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