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