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