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