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