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